U.S. President Warren G. Harding’s election in November of 1920 was the first in which American women could vote, following passage of the Nineteenth Amendment. And vote, they did, swelling voter rolls from 18.5 million in 1916 to 26.8 million in 1920. Harding and his running mate, Calvin Coolidge won in a landslide victory, 60.3 percent of the vote against fellow Ohioan James Cox and Franklin Roosevelt’s 34.1 percent.